Important : This calculator is an easy online tool for quick basic calculation and cannot give correct calculation in all circumstances. The exact calculation may be made after taking into account all applicable provisions of Income Tax Act / Rules.

Section 234 A : Interest payable for default in furnishing the return of income

Where the return of income for any assessment year is furnished after the due date or is not furnished, the assessee shall be liable to pay simple interest at the rate of one per cent for every month or part of a month for the period commencing on the date immediately following the due date upto the date of furnishing the return (in cases where return is furnished after the due date) or upto the end of the Assessment Year (in cases where no return is furnished) on the amount of shortfall in total income tax payable by the assessee.

In simple words, interest @ 1% per month is payable on the amount of income tax paid after the due date for filing of the return.

Due Dates for Filing of Returns for Assessment Year 2018-19 (FY 2017-18)

An assessee who is liable to pay advance tax has failed to pay such tax or where the advance tax paid by such assessee is less than ninety per cent of the assessed tax, the assessee shall be liable to pay simple interest at the rate of one per cent for every month or part of a month for period from the date on which the payment of advance tax became due on the amount of shortfall in the amount of advance tax paid.

In simple words, interest @ 1% per month is payable on the amount of income tax paid after the end of the financial year.

Section 234 C : Interest payable for deferment of advance tax

An assessee, (other than an assessee who declares profits and gains in accordance with the provisions of sub-section (1) of section 44AD or sub-section (1) of section 44ADA, as the case may be) who is liable to pay advance tax under section 208 has failed to pay such tax or

the advance tax paid by such assessee on its current income on or before the 15th day of June is less than fifteen per cent of the tax due on the returned income or the amount of such advance tax paid on or before the 15th day of September is less than forty-five per cent of the tax due on the returned income or the amount of such advance tax paid on or before the 15th day of December is less than seventy-five per cent of the tax due on the returned income, then, the assessee shall be liable to pay simple interest at the rate of one per cent per month for a period of three months on the amount of the shortfall from fifteen per cent or forty-five per cent or seventy-five per cent, as the case may be, of the tax due on the returned income;

the advance tax paid by the assessee on the current income on or before the 15th day of March is less than the tax due on the returned income, then, the assessee shall be liable to pay simple interest at the rate of one per cent on the amount of the shortfall from the tax due on the returned income.

Provided that if the advance tax paid by the assessee on the current income, on or before the 15th day of June or the 15th day of September, is not less than twelve per cent or, as the case may be, thirty-six per cent of the tax due on the returned income, then, the assessee shall not be liable to pay any interest on the amount of the shortfall on those dates.

Please note that in case of salaried employees, the advance tax liability is to be computed on the income other than salary income. TDS deducted by the employer is not to be adjusted against this liability.